Q. The main lines should form well-conditioned triangles is the condition to be fulfilled by survey lines or survey stations.

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Q. Survey lines must be as few as possible is the condition to be fulfilled by survey lines or survey stations.

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Q. As far as possible main survey lines should pass through the obstacles to get know how many obstacles present.

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Q. How many kinds of obstacles of chaining are there?

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Q. Which of the following is not one among the three major kinds of obstacles of chaining?

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Q. Both ends of the lines may be visible from intermediate points on the line. This case comes under which among the three kinds of obstacles to chaining?

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Q. When it is possible to chain round the obstacle, i.e a pond, hedge etc. This case comes under which among the three kinds of obstacles to chaining?

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Q. Both ends of the line may not be visible from intermediate points on the line. This case comes under which among the three kinds of obstacles to chaining?

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Q. When it is not possible to chain round the obstacle e.g. a river. This case comes under which among the three kinds of obstacles to chaining?

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Q. To continue a survey line AB past an obstacle, a line BC 100 m long was set out perpendicular to AB and from C angles BCD and BCE were set out at 60° and 45° respectively. Determine the lengths which must be chained off along CD in order that ED may be in AB produced?

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Q. To continue a survey line AB past an obstacle, a line BC 100 m long was set out perpendicular to AB and from C angles BCD and BCE were set out at 60° and 45° respectively. Determine the lengths which must be chained off along CE in order that ED may be in AB produced?

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Q. To continue a survey line AB past an obstacle, a line BC 300 m long was set out perpendicular to AB and from C angles BCD and BCE were set out at 60° and 45° respectively. Determine the obstructed length BE?

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Q. If we select two points A and B on either side of the obstacle and equal perpendiculars AC and BD are set out. Then AB is equal to?

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Q. The direction of a survey line can either be established with relation to _______

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Q. What is the direction of line relative to a given meridian?

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Q. Which line passes through true north and true south?

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Q. Which meridian direction can be established with the help of a magnetic compass?

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Q. Which meridians are used to determine the relative positions of the lines in a small area?

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Q. What is the horizontal angle which it makes with the true meridian through one of the extremities of the line?

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Q. What is the horizontal angle which it makes with the magnetic meridian through one of the extremities of the line?

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